JP4865608B2 - Repair method and repair device for welded part - Google Patents

Repair method and repair device for welded part Download PDF

Info

Publication number
JP4865608B2
JP4865608B2 JP2007064930A JP2007064930A JP4865608B2 JP 4865608 B2 JP4865608 B2 JP 4865608B2 JP 2007064930 A JP2007064930 A JP 2007064930A JP 2007064930 A JP2007064930 A JP 2007064930A JP 4865608 B2 JP4865608 B2 JP 4865608B2
Authority
JP
Japan
Prior art keywords
rotary tool
rotating
welded portion
weld bead
tool
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2007064930A
Other languages
Japanese (ja)
Other versions
JP2008221294A (en
Inventor
昌邦 江角
英夫 高井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2007064930A priority Critical patent/JP4865608B2/en
Publication of JP2008221294A publication Critical patent/JP2008221294A/en
Application granted granted Critical
Publication of JP4865608B2 publication Critical patent/JP4865608B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Pressure Welding/Diffusion-Bonding (AREA)

Description

この発明は、二つの部材の溶接部中に気泡などの欠陥があった場合に、この欠陥をなくすことを可能にする溶接部の補修方法及び補修装置に関する。   The present invention relates to a repair method and a repair device for a welded part that can eliminate the defect when a defect such as a bubble is present in the welded part of two members.

二つの部材の突き合わせ部は一般にＭＩＧ溶接（シールドガスに不活性ガスのみを用いるアーク溶接）で接合される。ＭＩＧ溶接した場合、溶接部中に気泡などの欠陥が生じる。欠陥があった場合、溶接部を削り取り、再度溶接して欠陥が無いようにしている。   The butted portions of the two members are generally joined by MIG welding (arc welding using only inert gas as shielding gas). When MIG welding is performed, defects such as bubbles are generated in the weld. When there is a defect, the welded part is scraped off and welded again so that there is no defect.

この欠陥の発生は溶接それ自体に起因している。特許文献１に記載されているように、二つの部材の突き合わせ部に回転工具を挿入して回転させながら移動させて、両部材を過熱して固層接合することが知られている。摩擦攪拌接合によれば、加熱温度は溶接ほど高温でないので、低温で接合でき、気泡などの欠陥も生じない。
特許第３０１４６５４号公報 The occurrence of this defect is due to the weld itself. As described in Patent Document 1, it is known that a rotary tool is inserted into a butting portion between two members and moved while rotating, and both members are overheated to be solid-layer bonded. According to friction stir welding, since the heating temperature is not as high as welding, it can be joined at a low temperature, and defects such as bubbles do not occur.
Japanese Patent No. 3014654

溶接では、加熱温度が部材の融点以上の高温であるので、気泡の発生は止むを得ない。   In welding, since the heating temperature is higher than the melting point of the member, the generation of bubbles is unavoidable.

本発明の目的は、溶接部内に気泡が生じても、生じた気泡を容易に除去できる溶接部の補修方法及び補修装置を提供することにある。   The objective of this invention is providing the repair method and repair apparatus of the welding part which can remove the produced | generated bubble easily even if a bubble arises in a welding part.

上記目的は、二つの部材同士が溶接されており、二つの部材の溶接部に対して、該溶接部の溶接ビード側から該溶接部内へ回転工具を回転させながら挿入するとともに当該挿入状態を保ったまま前記回転工具を回転させながら前記溶接ビードに沿って移動させる溶接部の補修方法において、前記溶接ビードの幅よりも小さい外径を有する円筒状の前記回転工具の下端部に形成された凹面に、該凹面から下方に突出する十文字状突出部或いは螺旋状突出部を備えた前記回転工具を、前記溶接ビードの盛り上がり頂部から前記部材の前記回転工具を挿入する側の表面までの高さ範囲内に位置させることを特徴とする溶接部の補修方法によって達成できる。
また、上記目的は、二つの部材同士が溶接されており、二つの部材の溶接部に対して該溶接部の溶接ビード側から該溶接部内へ回転工具を回転させながら挿入し、前記溶接部の前記溶接ビードの幅よりも小さい外径を有する円筒状の前記回転工具の下端部を前記溶接ビードの盛り上がり頂部から前記部材の前記回転工具を挿入する側の表面までの高さ範囲内に位置させるとともに当該挿入状態を保ったまま前記回転工具を前記溶接ビードに沿って移動させる駆動装置を備える溶接部の補修装置において、下端部に形成された凹面に、該凹面から下方に突出する十文字状突出部或いは螺旋状突出部を有する前記回転工具を備えることを特徴とする溶接部の補修装置によって達成できる。 The object is that two members are welded to each other , and a rotating tool is inserted into the welded portion of the two members from the weld bead side of the welded portion while rotating the rotary tool, and the inserted state is maintained. In the repairing method of a welded portion that moves along the weld bead while rotating the rotary tool, a concave surface formed at the lower end of the cylindrical rotary tool having an outer diameter smaller than the width of the weld bead Further, a height range from the raised top of the weld bead to the surface of the member on the side where the rotary tool is inserted is provided with the rotary tool having a cross-shaped projection or a spiral projection protruding downward from the concave surface. It can be achieved by a method for repairing a welded portion, which is characterized by being positioned inside .
In addition, the above-mentioned object is that two members are welded to each other, and a rotating tool is inserted into the welded portion of the two members from the weld bead side of the welded portion while rotating the tool. The lower end portion of the cylindrical rotary tool having an outer diameter smaller than the width of the weld bead is positioned within a height range from the raised top portion of the weld bead to the surface of the member on the side where the rotary tool is inserted. In addition, in the repair device for a welded portion having a drive device that moves the rotary tool along the weld bead while maintaining the insertion state, a cross-shaped projection projecting downward from the concave surface is formed on the concave surface formed at the lower end portion. It can be achieved by a repairing device for a welded portion comprising the rotating tool having a portion or a helical protrusion.

これによれば、溶接部に対して回転工具を回転させながら移動させているので、溶接部は回転工具で押され、また、摩擦熱を受けるので、気泡は溶融した溶接部内を移動しているうちに互いに合体し大きくなって溶接部の外に排出される。よって、気泡の欠陥がなくなる。
なお、欠陥がなくなる厚さは、摩擦攪拌接合による熱及び攪拌の影響を受ける領域であり、厚さ数ｍｍである。 According to this, since the rotary tool is moved while rotating with respect to the welded portion, the welded portion is pushed by the rotary tool and receives frictional heat, so that the bubbles are moving in the molten welded portion. They merge into one another and grow out of the weld. Therefore, the bubble defect is eliminated.
The thickness at which defects are eliminated is a region affected by heat and agitation by friction stir welding, and has a thickness of several mm.

また、従来の摩擦攪拌接合では、接合時の荷重、即ち、回転工具を溶接部に挿入し且つ挿入状態で移動させるのに要する駆動力が大きいため、回転工具の支持構造や駆動機構、或いは溶接される部材を支える架台構造等として高荷重に耐える設備が必要であったが、本発明では、溶接ビードの表面層を従来の摩擦攪拌接合用回転工具よりも小さい工具で施工するため、こうした設備を単純化できる。   Further, in the conventional friction stir welding, since the load at the time of joining, that is, the driving force required to move the rotating tool into the welded portion and move in the inserted state is large, the rotating tool support structure, driving mechanism, or welding However, in the present invention, since the surface layer of the weld bead is constructed with a tool smaller than a conventional rotary tool for friction stir welding, such a facility is required. Can be simplified.

以下、図面を参照してこの発明による溶接部の補修方法及び補修装置の実施例について説明する。   Embodiments of a repair method and a repair device for a welded portion according to the present invention will be described below with reference to the drawings.

本発明による溶接部の補修方法及び補修装置の一実施例を図１〜図４を参照して説明する。図１において、二つの部材１０，２０は突き合わされている状態にある。図示の例では、二つの部材１０，２０の先端同士は隙間なく突き合わされているが、溶接すべき先端同士の間に隙間があっても、また、先端が傾斜して開先が形成されていてもよい。
二つの部材１０，２０は架台３０に載せられている。 One embodiment of a repair method and repair device for a welded portion according to the present invention will be described with reference to FIGS. In FIG. 1, the two members 10 and 20 are in a state of being abutted. In the illustrated example, the tips of the two members 10 and 20 are abutted with each other without a gap, but even if there is a gap between the tips to be welded, the tips are inclined to form a groove. May be.
The two members 10 and 20 are placed on the gantry 30.

二つの部材１０，２０を溶接すると、溶接部５０の上端が、部材１０，２０の上面よりも溶接側（溶接トーチ側）に突出して盛り上がったビードの形態になる。図示の例では、溶接部５０は紙面に直交する方向に延びている。   When the two members 10 and 20 are welded, the upper end of the welded portion 50 is in the form of a bead that protrudes from the upper surface of the members 10 and 20 to the welding side (welding torch side) and rises. In the illustrated example, the welded portion 50 extends in a direction perpendicular to the paper surface.

図２において、溶接部５０の溶接ビードの表面、即ち、盛り上がり頂部側から擦攪拌接合用回転工具８０を回転させながら溶接ビードに挿入し、その挿入状態を保ったまま回転させながら溶接ビードに沿って移動させることで、溶接部５０の補修が行われる。   In FIG. 2, the rotary tool 80 for friction stir welding is inserted into the weld bead from the surface of the weld bead 50 of the welded portion 50, that is, from the top of the raised portion, and is rotated along the weld bead while rotating while maintaining the inserted state. Thus, the welded portion 50 is repaired.

回転工具８０の回転中心軸線の向きは、部材１０，２０の突き合わせ部において、部材１０，２０の表面に対して直交している。
回転工具８０の先端８０ｂは、部材１０，２０の表面と溶接部５０の溶接ビードの盛り上がり頂部との間の位置であって、部材１０，２０の上面からＨ寸法だけ溶接ビードの盛り上がり側に位置されている。このため、回転工具８０は部材１０，２０に接触せず、部材１０，２０を傷つけることがない。 The direction of the rotation center axis of the rotary tool 80 is orthogonal to the surfaces of the members 10 and 20 at the abutting portions of the members 10 and 20.
The tip 80b of the rotary tool 80 is a position between the surface of the members 10 and 20 and the rising top of the weld bead of the weld 50, and is located on the rising side of the weld bead by the H dimension from the upper surface of the members 10 and 20. Has been. For this reason, the rotary tool 80 does not contact the members 10 and 20 and does not damage the members 10 and 20.

図３において、回転工具８０の先端８０ｂが挿入している部分（溶接部５０）は、回転工具８０から押し付け力を受け、回転工具８０と溶接部５０との間に回転工具８０の攪拌による摩擦熱が発生する。この押し付け力と摩擦熱とで、気泡９０は熱を受け、溶融部分内を移動して互いに接合・合体し、溶接部５０の外に排出される。摩擦熱を受ける領域（厚さ）は回転工具８０から数ｍｍである。   In FIG. 3, the portion where the tip 80 b of the rotary tool 80 is inserted (welded portion 50) receives a pressing force from the rotary tool 80, and friction between the rotary tool 80 and the welded portion 50 due to stirring of the rotary tool 80. Heat is generated. With this pressing force and frictional heat, the bubbles 90 receive heat, move in the melted portion, join and merge with each other, and are discharged out of the weld 50. The region (thickness) that receives frictional heat is several mm from the rotary tool 80.

回転工具８０の先端８０ｂは、溶接部５０に若干入っている。このため、先端８０ｂの傾斜した後端縁の位置から上方の溶接部５０は切削されて除去される。回転工具８０の移動方向は、溶接部５０の長手方向である。回転工具８０は進行方向に対して先端８０ｂよりも後端（図３では上端）８０ａが後方となる態様で傾斜しており、この傾斜角度θは、通常に摩擦攪拌接合する場合の傾斜角度と同様な３度程度である。   The tip 80b of the rotary tool 80 is slightly in the weld 50. For this reason, the upper welded portion 50 is cut and removed from the position of the inclined rear end edge of the front end 80b. The moving direction of the rotary tool 80 is the longitudinal direction of the welded portion 50. The rotary tool 80 is inclined with respect to the advancing direction in such a manner that the rear end (upper end in FIG. 3) 80a is behind the front end 80b, and this inclination angle θ is the inclination angle in the case of normal friction stir welding. It is about the same 3 degrees.

回転後部８０で溶接部５０が除去される部分は、溶接終了後にグラインダー等で切削する予定の部分であり、この除去予定部分は、グラインダーで切削する代わりに、本発明による補修作業で除去されるので、作業を簡単にできる。   The portion where the welded portion 50 is removed at the rotation rear portion 80 is a portion that is scheduled to be cut by a grinder after the end of welding, and this portion to be removed is removed by repair work according to the present invention instead of cutting by the grinder. So you can work easily.

回転工具８０は移動するので、溶接部５０におけるその軌跡は溝になると考えられるが、それは周知の摩擦攪拌接合と同様に周囲の溶接部５０から補填されて埋められるので、溝はなくなる。   Since the rotary tool 80 moves, its trajectory in the welded portion 50 is considered to be a groove, but since it is filled and filled from the surrounding welded portion 50 in the same manner as the known friction stir welding, the groove is eliminated.

この補修によれば、溶接によって生じた気泡９０は、回転工具８０の回転で生じた熱、及び押し付け力で接合されるので、大きくなった気泡９０を溶接部５０から除去できる。
また、溶接部５０の盛り上がりの頂部は切削されるので、気泡の除去とともに溶接部５０の除去も合わせて達成される。 According to this repair, since the bubble 90 generated by welding is joined by the heat generated by the rotation of the rotary tool 80 and the pressing force, the enlarged bubble 90 can be removed from the welded portion 50.
Moreover, since the top part of the swell of the welded part 50 is cut, the removal of the welded part 50 is achieved together with the removal of bubbles.

図４及び図５を参照して、本発明による溶接部の補修方法及び補修装置の他の実施例を説明する。図４、図５において、回転工具８０は、通常の摩擦攪拌接合用の回転工具と同様である。つまり、回転工具８０の先端８０ｂには溶接部５０側に小径の小径部８５が突出している。小径部８５の径は溶接部５０の溶接ビード幅よりも小さく、突出代は部材１０，２０の突き合わせ厚さよりも小さい。補修時には、小径部８５は溶接部５０内に位置する。小径部８５は溶接部５０から突出することはない。   With reference to FIG.4 and FIG.5, the other Example of the repair method and repair apparatus of the welding part by this invention is described. 4 and 5, the rotary tool 80 is the same as a normal rotary tool for friction stir welding. That is, a small diameter portion 85 with a small diameter protrudes from the tip 80b of the rotary tool 80 toward the welded portion 50 side. The diameter of the small diameter portion 85 is smaller than the weld bead width of the welded portion 50, and the protrusion margin is smaller than the butt thickness of the members 10 and 20. At the time of repair, the small diameter portion 85 is located in the welded portion 50. The small diameter portion 85 does not protrude from the welded portion 50.

この実施例によれば、小径部８５は部材１０，２０及び溶接部５０に接触する。このため、回転工具８０を回転させるときには、溶接部５０のみならず部材１０，２０をも摩擦攪拌接合することになる。小径部８５があるので、その周囲の溶接部８０は摩擦攪拌され、より多くの気泡９０を除去できる。   According to this embodiment, the small diameter portion 85 contacts the members 10 and 20 and the welded portion 50. For this reason, when rotating the rotary tool 80, not only the weld 50 but also the members 10 and 20 are friction stir welded. Since there is the small-diameter portion 85, the surrounding welded portion 80 is frictionally stirred, and more bubbles 90 can be removed.

上記実施例では回転工具８０は小径部８５を有していたが、こうした構造は必ずしも必須ではない。図６〜図１１において、回転工具８０は、図４及び図５で示した実施例で備わっていたような小径の突出部が設けられることなく凹面８６が形成された構造となっている。ただし、図８〜図１１の実施例においては、回転工具８０から溶接部への攪拌力を高めるために、溶接部に接触する回転工具５０の先端８０ｂに、その凹面８６から下方に突出する突出部８７を設けることも可能である。図８、図９に示す例では突出部８７は十文字状であり、図１０、図１１に示す例では突出部８７は螺旋状である。   In the above embodiment, the rotary tool 80 has the small diameter portion 85, but such a structure is not necessarily essential. 6 to 11, the rotary tool 80 has a structure in which a concave surface 86 is formed without providing a small-diameter protruding portion as provided in the embodiment shown in FIGS. 4 and 5. However, in the embodiment of FIGS. 8 to 11, in order to increase the stirring force from the rotary tool 80 to the welded portion, the tip 80 b of the rotary tool 50 that contacts the welded portion protrudes downward from the concave surface 86. A portion 87 can also be provided. In the example shown in FIGS. 8 and 9, the protruding portion 87 has a cross shape, and in the examples shown in FIGS. 10 and 11, the protruding portion 87 has a spiral shape.

本発明による補修が適用される溶接部の縦断面図。The longitudinal cross-sectional view of the welding part to which repair by this invention is applied. 本発明による溶接部の補修状態を示す縦断面図。The longitudinal cross-sectional view which shows the repaired state of the welding part by this invention. 図２のＩＩＩ−ＩＩＩ断面図。III-III sectional drawing of FIG. 本発明によって溶接部を補修する回転工具の正面図。The front view of the rotary tool which repairs a welding part by this invention. 図４に示す回転工具の底面図。The bottom view of the rotary tool shown in FIG. 本発明による回転工具の別の実施例を示す底面図。The bottom view which shows another Example of the rotary tool by this invention. 図６のＶＩＩ−ＶＩＩ断面図。VII-VII sectional drawing of FIG. 本発明による回転工具の更に別の実施例を示す底面図。The bottom view which shows another Example of the rotary tool by this invention. 図８のＩＸ−ＩＸ断面図。IX-IX sectional drawing of FIG. 本発明による回転工具の他の実施例を示す底面図。The bottom view which shows the other Example of the rotary tool by this invention. 図１０のＸＩ−ＸＩ断面図。XI-XI sectional drawing of FIG.

符号の説明Explanation of symbols

１０，２０：部材、５０：溶接部、８０：回転工具、８０ｂ：先端小径部、８５：小径部、９０：気泡   10, 20: member, 50: welded portion, 80: rotating tool, 80b: small diameter portion at the tip, 85: small diameter portion, 90: air bubbles

Claims (4)

二つの部材同士が溶接されており、二つの部材の溶接部に対して、該溶接部の溶接ビード側から該溶接部内へ回転工具を回転させながら挿入するとともに当該挿入状態を保ったまま前記回転工具を回転させながら前記溶接ビードに沿って移動させる溶接部の補修方法において、
前記溶接ビードの幅よりも小さい外径を有する円筒状の前記回転工具の下端部に形成された凹面に、該凹面から下方に突出する十文字状突出部を備えた前記回転工具を、前記溶接ビードの盛り上がり頂部から前記部材の前記回転工具を挿入する側の表面までの高さ範囲内に位置させること、
を特徴とする溶接部の補修方法。 Two members are welded to each other , and the rotating tool is inserted into the welded portion of the welded portion from the weld bead side of the welded portion while rotating the rotating tool, and the rotation is performed while maintaining the inserted state. In the repair method of the welded portion that moves along the weld bead while rotating the tool ,
The rotary tool provided with a cross-shaped projecting portion projecting downward from the concave surface formed on a lower surface of the cylindrical rotary tool having an outer diameter smaller than the width of the weld bead. Positioning within a height range from the raised top of the member to the surface of the member on the side where the rotary tool is inserted ,
Repair method for welds characterized by 二つの部材同士が溶接されており、二つの部材の溶接部に対して、該溶接部の溶接ビード側から該溶接部内へ回転工具を回転させながら挿入するとともに当該挿入状態を保ったまま前記回転工具を回転させながら前記溶接ビードに沿って移動させる溶接部の補修方法において、
前記溶接ビードの幅よりも小さい外径を有する円筒状の前記回転工具の下端部に形成された凹面に、該凹面から下方に突出する螺旋状突出部を備えた前記回転工具を、前記溶接ビードの盛り上がり頂部から前記部材の前記回転工具を挿入する側の表面までの高さ範囲内に位置させること、
を特徴とする溶接部の補修方法。 Two members are welded to each other , and the rotating tool is inserted into the welded portion of the welded portion from the weld bead side of the welded portion while rotating the rotating tool, and the rotation is performed while maintaining the inserted state. In the repair method of the welded portion that moves along the weld bead while rotating the tool ,
The rotary tool provided with a helical protrusion projecting downward from the concave surface formed on a lower surface of the cylindrical rotary tool having an outer diameter smaller than the width of the weld bead. Positioning within a height range from the raised top of the member to the surface of the member on the side where the rotary tool is inserted ,
Repair method for welds characterized by 二つの部材同士が溶接されており、二つの部材の溶接部に対して該溶接部の溶接ビード側から該溶接部内へ回転工具を回転させながら挿入し、前記溶接部の前記溶接ビードの幅よりも小さい外径を有する円筒状の前記回転工具の下端部を前記溶接ビードの盛り上がり頂部から前記部材の前記回転工具を挿入する側の表面までの高さ範囲内に位置させるとともに当該挿入状態を保ったまま前記回転工具を回転させながら前記溶接ビードに沿って移動させる駆動装置を備える溶接部の補修装置において、
下端部に形成された凹面に、該凹面から下方に突出する十文字状突出部を有する前記回転工具を備えること、
を特徴とする溶接部の補修装置。 It is welded two members each other, with respect to the weld of the two members inserted while rotating the rotary tool into the welding portion from the welding bead side of the welded portion, than the width of the weld bead of the weld The lower end of the cylindrical rotary tool having a small outer diameter is positioned within the height range from the raised top of the weld bead to the surface of the member on the side where the rotary tool is inserted, and the insertion state is maintained. in the repair apparatus welds Ru a drive device for moving along the weld bead while rotating the rotary tool while,
A concave surface formed at the lower end, Rukoto provided with the rotary tool having a cross-shaped protrusion protruding downward from the concave surface,
Repair equipment for welds characterized by 二つの部材同士が溶接されており、二つの部材の溶接部に対して該溶接部の溶接ビード側から該溶接部内へ回転工具を回転させながら挿入し、前記溶接部の前記溶接ビードの幅よりも小さい外径を有する円筒状の前記回転工具の下端部を前記溶接ビードの盛り上がり頂部から前記部材の前記回転工具を挿入する側の表面までの高さ範囲内に位置させるとともに当該挿入状態を保ったまま前記回転工具を回転させながら前記溶接ビードに沿って移動させる駆動装置を備える溶接部の補修装置において、
下端部に形成された凹面に、該凹面から下方に突出する螺旋状突出部を有する前記回転工具を備えること、
を特徴とする溶接部の補修装置。 It is welded two members each other, with respect to the weld of the two members inserted while rotating the rotary tool into the welding portion from the welding bead side of the welded portion, than the width of the weld bead of the weld The lower end of the cylindrical rotary tool having a small outer diameter is positioned within the height range from the raised top of the weld bead to the surface of the member on the side where the rotary tool is inserted, and the insertion state is maintained. in the repair apparatus welds Ru a drive device for moving along the weld bead while rotating the rotary tool while,
A concave surface formed at the lower end, Rukoto provided with the rotary tool having a helical projection projecting downward from the concave surface,
Repair equipment for welds characterized by
JP2007064930A 2007-03-14 2007-03-14 Repair method and repair device for welded part Active JP4865608B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007064930A JP4865608B2 (en) 2007-03-14 2007-03-14 Repair method and repair device for welded part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007064930A JP4865608B2 (en) 2007-03-14 2007-03-14 Repair method and repair device for welded part

Publications (2)

Publication Number Publication Date
JP2008221294A JP2008221294A (en) 2008-09-25
JP4865608B2 true JP4865608B2 (en) 2012-02-01

Family

ID=39840489

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007064930A Active JP4865608B2 (en) 2007-03-14 2007-03-14 Repair method and repair device for welded part

Country Status (1)

Country Link
JP (1) JP4865608B2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101670483B (en) * 2009-10-21 2011-06-15 哈尔滨工业大学 Fill type stirring friction plug repair welding method and welding tool thereof
JP5789495B2 (en) * 2011-11-24 2015-10-07 株式会社日立製作所 How to repair welds
JP6265830B2 (en) * 2014-05-21 2018-01-24 新日鐵住金ステンレス株式会社 Method for improving corrosion resistance of duplex stainless steel welds
CN104117749B (en) * 2014-08-13 2016-03-02 成都四威高科技产业园有限公司 A kind of rewelding method of aluminium alloy sealed welding seam
CN106624342B (en) * 2017-01-23 2018-11-23 沈阳航空航天大学 A method of metal component volume flaw is answered with agitating friction repair welding
KR102173870B1 (en) * 2019-06-05 2020-11-05 주식회사 화신 Arc welding apparatus
CN111687587B (en) * 2020-05-31 2021-08-13 西安交通大学 Blunt circle repairing method for sharp damage of blade pits of blade disc of engine

Also Published As

Publication number Publication date
JP2008221294A (en) 2008-09-25

Similar Documents

Publication Publication Date Title
JP4865608B2 (en) Repair method and repair device for welded part
JP6393707B2 (en) Spot joining apparatus, spot joining method and joint structure
JP2011218363A (en) Friction stir joining method
JP6607050B2 (en) Laser-arc hybrid welding method
WO2017138324A1 (en) Joining method
JP6747365B2 (en) Joining method
JP2018187672A (en) Joining method
JP6740960B2 (en) Joining method
JP2003236682A (en) Method for joining pipe-like members
JP3289650B2 (en) Friction welding method
JP6794945B2 (en) Joining method
JP5000982B2 (en) Laser welding method for differential thickness materials
JP6658469B2 (en) Friction stir welding method
JP6740964B2 (en) Joining method
JP2001300744A (en) Method of friction stir joining and tool for friction stir joining
JP2018187671A (en) Joining method
JP2009119488A (en) Joining method
JP6769244B2 (en) Joining method
JP2009172650A (en) Manufacturing method of joined structure
JP2019025489A (en) Joining method
JP6740963B2 (en) Joining method
CN109562484B (en) Bonding method
JP6794726B2 (en) Joining method
WO2019097771A1 (en) Joining method
JP2018134669A (en) Joining method

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090930

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110520

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110621

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110822

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20111108

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20111110

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20141118

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 4865608

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150